Problem 4.14 The post is made of Douglas fir and has a diameter of 100 mm. (Figure 1) It is subjected to the load of 20 kN and the soil provides a frictional resistance distributed around the post that is triangular along its sides; that is, it varies from w 0 kN/m at y=0 m to w = 11 kN/m at y 2 m. Neglect the weight of the post. 1 of 1 20 KN 2 m y YA W F B 12 kN/m